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The Common geranium is one of the long-time popular flowering perennials in gardens throughout the Inland Empire. It becomes a mounding perennial with succulent stems, usually growing 2-3 ft. tall and as wide. Circular leaves with heavily scalloped margins have soft fuzzy surfaces and are strongly pungent when crushed. Flowers are grouped together in ball-like clusters that are 3-4 in. dia. and project out from the foliage on 5-7 in. long stems. Flower petals have solid colors and include white, pink, red and lavender

Common geraniums are known as zonal hybrids due to the occurrence of dark circular rings that mark the leaf surface. This group is noted to have good tolerance of heat, aridity and sun conditions, and can survive neglect for extended periods of time. Red cultivars are classic container plants; many colors are available from nurseries and garden centers.

Water Needs

The Common geranium grows well throughout the Inland Empire in sunny locations with moderate amounts of water throughout the year. The chart shown below provides a recommended baseline guide to the monthly irrigation schedule and volume of supplemental water needed to maintain healthy growth throughout the average year. It should be noted there are several winter months marked by an asterisk (*) when rains can provide sufficient moisture and irrigation is not needed. The high and low range of moisture indicates Common geranium can grow with varying amounts of water; higher amounts of water will result in stronger springtime flowering performance and summer foliage character.

Irrigation Schedule and Graph

Moderate Water Use Plants

Irrigation Schedule 4

  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
Runs per Month 0x to 3x 0x to 3x 0x to 3x 2x to 3x 2x to 3x 3x to 4x 3x to 4x 3x to 4x 2x to 3x 2x to 3x 0x to 3x 0x to 3x
Inches per Run 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1"
Inches per Month 0" to 3" 0" to 3" 0" to 3" 2" to 3" 2" to 3" 3" to 4" 3" to 4" 3" to 4" 2" to 3" 2" to 3" 0" to 3" 0" to 3"

Range of supplemental summer water: 17"-24"
Range of supplemental winter water: 0"-15"

  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
For more information on how to use this Irrigation Schedule and Graph, follow this link.

For information how to calculate your irrigation system’s schedule and precipitation rate, please follow this link.

Plant Properties

Plant Type: Perennial
Foliage Character: Evergreen
Habit: Mounding, Compact
Growth Rate: Fast
Height: 1 ft. - 3 ft.
Width: 1 ft. - 3 ft.
Water Needs: Moderate 4
Foliage Color: Medium green
Flower Color: Red, Pink, White, Lavender
Flower Season: Summer, Spring
Soil Adaptations: Moist soil, Loam
Exposure Adaptations: Morning sun, Heat, Aridity, All day sun
Function: Residential spaces, Raised planters, Near pools and water features, Mass planting, Grouped, Flowering accent plant, Container plant, Commercial spaces, Civic spaces, Borders


Pinch back plants as desired to maintain bushier growth. Remove spent flowers to increase flower production if desired. Prune out larger older stems in spring as necessary to clean up look (D).



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